Wrench.



No. 879,.383. PATENTE'D FEB. 18, 1908.

' P. HAWKINS.

WRENCH.

APPLIGATIONTILED SEPT. Z9, 1906.

PETER HAWKINS, O F KOKOMO, INDIANA.

WRENCH.

Specification of Letters Patent. y

Patented Feb. 18, 1908.

Application filed September 29. 1906. Serial No. 336.722.

To all whom it may concern.'

Be it known that I, PETER HAwKINs, a f citizen of the United States, residing at Ko komo, in the county of Howard and State of Indiana, have invented a new and useful, Wrench; and I do hereby declare the followe ing to be a full, clear, and exact description of the invention, such `as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to wrenches, and has for its object to provide a simple, inexpensive and durable device of this class, which can be readily adjusted in an instant, accordin to the size of the nut or pipe to be lengage With these and other objects in view, the invention consists in the novel combination, and arrangement of parts, hereinafter de- E scribed and shown and particularly pointed out in the appended claims.

In the drawing forming part of this speciiication, and in which like numerals of reference indicates similar parts throughout the several views, Figure 1, is aside elevation of the Awrench constructed in accordance with this invention. Fig. 2, is a plan view, showing the handle disengaged from the shank.

Referring to the drawings, 1 designates a shank, having a rigid jaw 2, and an adjustable jaw 3 coperating therewith. It is obvious that this wrench may be em loyed in operating on pipes, rods and the li e, or nuts. The jaws have teeth 4, or they may be made smooth on their inner faces as desired. The shank 1, terminates in an enlargement or head 5, to which is ivotally connectedv a handle 6. The pivotal)end of the handle 6, is provided with an enlargement 6a, which is provided with an abutment 6b,I which contacts with the shank of the rigid jaw, as at 6C, so as to limit the throw of'saidy handle. The head 5 is bifurcated as shown in Fig. 2, in which bifurcation the handle 6 is received.

Projecting fromythe enlargement 6a is an arm 7 to which, a link 8 is pivoted as at 7a, which link in turn is pivoted to jaw 3 as at 3a, as clearly shown in the drawings. The pivot of the enlargement 6a is eccentrically disposed, to the center of the bifurcated circular head 5; this is for the purpose of allowing the pivot 7a to travel in a greater arc so as to operate the jaw 3 closer to the said head 5, without causing the jaw 3 to bind upon the shank of the rigid jaw, which binding action would be caused if the arm 7 were made longer, so as to throw the pivot 7a further from the said head. The head 5 is made circular and of the size shown so as to have a greater area in which to dispose the pivot of the said handle, as will be clearly manifest.

In operation, the movable jaw 3 is adjusted by the oscillation of the handle 6, as will be readily understood. Then it is desired to engage a small pipe or nut, the handle being moved inward, and when it is desired to engage a larger subject, the handle is moved in the opposite direction.

The head 5 which is bifurcated is eccentrically pivoted to the handle 6 which increases the leverage power of the handle 6 for moving the adjustable jaw.

Havin thus fully described my invention, what I claim as new and desire to secure by Letters Patent is,

A wrench comprising a shank having at one end, a fixed j aw-member and at its opposite end a circular bifurcated enlargement, a movable jaw-member, slidably mounted upon said shank, a handle or lever having an inner-end enlargement formed between cheek ieces formed by said bifurcated shank enargement, and a link connection between said movable jaw and an outstandin eX- tension of said. inner-end enlargement oTsaid lever, said lever having pivotal connection with said circular enlargement of said shank member, said pivotal connection being ec- Acentrically effected with said circular end enlargement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PETER HAWKINS.

Witnesses:

CHARLES N. BARGs, LORA SMITH. 

